From a New York Times brief on DirecTV's new deal with YES, it looks like SNY and DirecTV are talking turkey as the channel will stay up with the sides talking. I don't see SNY going away, especially with Dish Network deciding to pull out of the New York RSN market.
http://www.nytimes.com/2011/04/08/sports/baseball/08sportsbriefs-yes.html
http://www.nytimes.com/2011/04/08/sports/baseball/08sportsbriefs-yes.html